I need answer not links ​

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?

Quickly, you! v v v v v v v v v v v v